[CVE-2009-0029] Remove __attribute__((weak)) from sys_pipe/sys_pipe2

Remove __attribute__((weak)) from common code sys_pipe implemantation.
IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations
with the same name. Just rename them.
For sys_pipe2 there is no architecture specific implementation.

Cc: Richard Henderson <rth@twiddle.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
diff --git a/fs/pipe.c b/fs/pipe.c
index 8916971..0c64db8 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1043,7 +1043,7 @@
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
  */
-asmlinkage long __weak sys_pipe2(int __user *fildes, int flags)
+asmlinkage long sys_pipe2(int __user *fildes, int flags)
 {
 	int fd[2];
 	int error;
@@ -1059,7 +1059,7 @@
 	return error;
 }
 
-asmlinkage long __weak sys_pipe(int __user *fildes)
+asmlinkage long sys_pipe(int __user *fildes)
 {
 	return sys_pipe2(fildes, 0);
 }